<template>
  <div>
    <h2>事件绑定指令</h2>

    <p>{{ age }}</p>

    <button @click="age++">+1</button>

    <button @click="changeAge">按钮</button>
  </div>
</template>

<script>
export default {

  data () {
    return {
      age: 20
    }
  },

  methods: {
    changeAge () {
      this.age--
      console.log(123)
    }
  }
}
</script>

<style></style>
